| Company | Timeline | Status | |
| Highland Industrial Training Suppliers (Hits) Ltd Director • Industrial Trainer | 27 Nov 2013←11 Years→Current | Active | |
Highland Industrial Training Services (Hits) Ltd Director • Industrial Training | 21 Feb 2013←1 Year 4 Months→4 Jul 2014 | Dissolved | |
Donald Calder Ltd Director • None | 8 Mar 2012←7 Years→14 May 2019 | Dissolved | |
